I have a program that is a converter for times in minutes and seconds and returns a float value with a decimal, for example:
我有一个程序，它是一个转换器，用于分钟和秒的时间，并返回一个带小数的浮点值，例如：
6.57312
6.57312
I would like to extract the .57312 part in order to convert it to seconds.
我想提取.57312部分，以便将其转换为秒。
How can I get python to take only the value after the decimal point and put it into a variable that I can then use for the conversion?
我怎样才能让python只取小数点后的值并将其放入一个我可以用于转换的变量？
3 个解决方案
#1
11
You can do just a simple operation
你可以做一个简单的操作
dec = 6.57312 % 1
#2
7
math.modf does that. It also has the advantage that you get the whole part in the same operation.
math.modf就是这么做的。它还具有使整个部件处于同一操作中的优点。
import math
f,i = math.modf(6.57312)
# f == .57312, i==6.0
Example program:
示例程序：
import math
def dec_to_ms(value):
frac,whole = math.modf(value)
return "%d:%02d"%(whole, frac*60)
print dec_to_ms(6.57312)
#3
1
You can do this also
你也可以这样做
num = 6.57312
dec = num-int(num)
#1
11
You can do just a simple operation
你可以做一个简单的操作
dec = 6.57312 % 1
#2
7
math.modf does that. It also has the advantage that you get the whole part in the same operation.
math.modf就是这么做的。它还具有使整个部件处于同一操作中的优点。
import math
f,i = math.modf(6.57312)
# f == .57312, i==6.0
Example program:
示例程序：
import math
def dec_to_ms(value):
frac,whole = math.modf(value)
return "%d:%02d"%(whole, frac*60)
print dec_to_ms(6.57312)
#3
1
You can do this also
你也可以这样做
num = 6.57312
dec = num-int(num)